Ejector type socket wrench



May 17, 1949. F. HOLBEN EJECTOR TYPE SOCKET WRENCH 2 Sheets-Sheet 1 Filed March 8, 1945 Inventor r m I /d m WWW 3m May 17, 1949. HOLBEN 2,470,399

EJECTOR TYPE SOCKET WRENCH Filed March 8', 1945 2 Sheets-Sheet 2 Inventor Patented May 17, 1949 UNITED STATES PATENT OFFICE EJECTOR TYPE SOCKET WRENCH Frank Holben, Middletown, R. I. Application March 8, 1945, Serial No. 581,584

This invention relates to an ejector-type socket wrench, that is, a special type of wrench embodying a shank having a hand-grip at one end and a socket at the other end, means being associated with and incorporated in the grip and shank to eject nuts or bolts from the socket.

More specifically, one embodiment of the invention relies for novelty on.a spring-returned plunger mounted for reciprocation in the handle and shank assembly, the plunger rod having a hand-knob located in a projecting position beyond one end of the hand-grip to permit the latter to be employed with convenience and expediency for loosening or tightening nuts and bolts, after which the knob on the plunger may be expediently employed to dislodge and eject the nut from the socket.

Another phase of the invention has to do with a slightly different form of plunger arrangement in which the plunger rod is operated by a simple finger-piece projecting through a side slot in the shank.

Other features and advantages will become more readily apparent from the following description and the accompanying illustrative drawings.

In the drawings, wherein like numerals are employed to designate like parts throughout the views:

Figure 1 is a side elevational view of a handgrip type socket wrench embodying ejector means constructed in accordance with the principles of the present invention.

Figure 2 is a longitudinal central sectional view on the plane of the line 2-2 of Figure Figure 3 is a cross section on the line 3-3 of Figure 2.

Figure 4 is a cross section through the shank on the line 4-4 of Figure 2.

Figure 5 is a view like Figure 2, that is, a longitudinal section and elevational view showing a. modified form of the invention.

Figure 6 is a perspective view of the plunger unit employed in the arrangement depicted in Figure 5.

Figure 7 is a fragmentary elevational view of an end portion of the tubular shank.

Figure 8 is an enlarged fragmentary detail sectional and elevational view of the operating member on the reciprocatory plunger rod.

Reference is had first to Figures 1 to 4, inclusive. Here, the tubular shank 9 is provided in one end with a polygonal socket Ill. The inner or upper end of said shank projects into a socket l l in the wooden or equivalent hand-grip [2. The

1 Claim. (Cl. 81124.1)

hand-grip is centrally bored and the bore extends through opposite ends and is enlarged at one end to form the socket II. There is an intermediate and smaller socket at the point l3 and a still smaller reduction at the point M. The tapered end of the hand-grip is provided with a ferrule l5 held in place by retention and assembling pins l5a which also serve to anchor the shank in the socket II. The reciprocatory plunger rod 16 extends completely through the bore in the hand-grip and also through the central bore or passage in the shank 9. This rod is provided at one end with an ejector head I! and at its opposite end with a smaller head l8 which constitutes a hand-knob or thrust member. A coiled spring [9 is located in the socket l3 and surrounds the plunger-rod and bears at one end against the stop collar 20 on said p1unger-rod and is also confined in said socket l3. The opposite end of the spring rests upon the adjacent end of the shank 9, thus utilizing this end of the shank as a shoulder for said spring.

In practice, the spring l9 bearing against the parts 9 and 20 serves to retain the ejector disk or head I! in the socket III in a receding position. The spring also serves to place the operating knob l8 in a projected position in readiness for use. It is evident that by pressing the knob 18 against the tension of the spring, the ejector disk I! forces a nut (not shown) out of the socket l0.

Referring now to the modification seen in Figures 5 to 8, inclusive, certain parts correspond to those already described and shown in Figures 1 to 4. That is to say, the cylindrical wooden hand-grip l2a in this instance is merely provided with a socket which comprises, an inner enlarged portion Ha and a reduced coacting axial socket Isa. The inner end of the tubular shank 9a extends into the socket I la and is fastened in place by the parts [5 and I511. already described. The plunger-rod l6a is provided with an ejector disk or head Ila normally confined in the socket wrench Illa. The rod l6a terminates within the limits of the socket l3a and is provided with a stop collar 20a with which the coil spring l9a engages. The spring surrounds the rod and rests upon the adjacent inner end of the shank 9a. In this arrangement the shank is provided at one side with an elongated slot 2| to accommodate the operating member 22. This member comprises a ball on the outer end of a stem which stem is threaded into the operating rod as shown to advantage in Figure 8. Thus, we have a choice of two different ways of projecting the ejector rods IE or l6a.

It is throught that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with the drawings. Therefore, a, more lengthy description is regarded as unnecessary.

Minor changes in the shape, size and arrangement of details coming within the field of invention claimed may be resorted to in actual practice, if desired.

Having described the claimed as new is:

In a tool of the class described, an elongated hand-grip, said hand-grip being centrally andaxially bored and the bore extending; through opposite ends of the hand-grip, said bore embodying graduated portions of varying diameters defining, at one end, av shank accommodating socket, a spring. accommodating socket intermediate the hand grip ends, and a restricted invention, what is plunger rod guide, the latter being. at the innerthe. hand-grip, said shank being provided at its.-

4 outer or working end with a socket wrench, a plunger rod extending through the bore of the shank and having a head on its outer end located in said socket wrench, said rod also extending through and beyond remaining portions of the bore in said hand-grip and terminating at its other end in an operating knob, said knob being arranged exteriorly of the adjacent end of the hand-grip, a shoulder on said rod located in the spring accommodating socket, and a coiled spring confined in said socket surrounding said rod and bearing against said shoulder and also against the adjacent inner end of said shank.

FRANK HOLBEN.

REFERENCES CITED Thesfollowingnreferences are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 271,549 True Jan. 30, 1883 2911961 True June 15, 1884 483,222 Johnson Sept. 27, 1892 606,956 Barry July 5, 1898 937,944 Lindahl Oct. 26, 1909 1,490,739: Hewitt, Jr. Apr. 15, 1924 

